Mufflers - 1 Outlet Quantity - 11.500 in. Width (in.) - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $125 at Summit Racing

Walker Quiet-Flow SS 409 Stainless Steel 3 Inch Muffler 21684

Mufflers, Quiet-Flow SS, Stainless Steel, Natural, 30.000 in. Overall Length, Cadillac, Chevy, GMC, Each

Part Number: WLK-21684

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Dynomax Ultra Flo Welded Steel 4 Inch Muffler 17557

Muffler, Ultra Flo Welded, Oval, 4 in. Inlet/4 in. Outlet, Stainless Steel, Chevy, GMC/Hummer, Each

Part Number: WLK-17557

3.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

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AP Exhaust OE Replacement Steel 4 Inch Muffler 2519

AP Exhaust OE Replacement Steel 4 Inch Muffler 2519

Muffler, OE Replacement, Steel, Aluminized, Dodge, 5.9L, Diesel, Each

Part Number: APH-2519

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

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Walker Quiet-Flow SS Steel 4 Inch Muffler 54637

4.5 out of 5 stars ( 21 )

Estimated Ship Date: Today

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AP Exhaust MSL Maximum Steel 4 Inch Muffler 700476

Muffler, MSL, Oval, Baffled, Steel, Aluminized, 4.00 in. Offset Inlet/Outlet, 39.00 in. Overall Length, Each

Part Number: APH-700476

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Walker Heavy-Duty Steel 4 Inch Muffler 22004

Muffler, Heavy-Duty, Oval, Steel, Aluminized, 4.00 in. Offset Inlet/Outlet, 34.00 in. Overall Length, Each

Part Number: WLK-22004

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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AP Exhaust OE Replacement Steel 3 Inch Muffler 2579

Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, 4.8, 6.0L, Each

Part Number: APH-2579

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

AP Exhaust OE Replacement Steel 3.5 Inch Muffler 2518

Muffler, OE Replacement, Steel, Aluminized, Dodge, 5.9L, Diesel, Each

Part Number: APH-2518

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Walker Replacement Steel 3.5 Inch Muffler 22604

Muffler, Replacement, 3 1/2 in. Inlet/4 in. Outlet, Steel, Aluminized, Each

Part Number: WLK-22604

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

AP Exhaust OE Replacement Steel 3 Inch Muffler 2506

Muffler, OE Replacement, Steel, Aluminized, Ford, 6.0L, Diesel, Each

Part Number: APH-2506

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Walker School Bus Steel 3.5 Inch Muffler 22551

Muffler, School Bus, 3 1/2 in. Inlet/4 in. Outlet, Steel, Aluminized, Each

Part Number: WLK-22551

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Walker Quiet-Flow SS 409 Stainless Steel 2 Inch Muffler 50075

Mufflers, Quiet-Flow SS, Stainless Steel, Natural, 2.00 in. Center Inlet, 2.00 in. Offset Outlet, 37.250 in. Overall Length, Saturn, 2.4L, Each

Part Number: WLK-50075

4.0 out of 5 stars ( 2 )

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Walker Quiet-Flow SS 409 Stainless Steel 2.5 Inch Muffler 21683

Muffler - Quiet-FlowSS - Domestic - TK

Part Number: WLK-21683

Not Yet Reviewed

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AP Exhaust Challenge Steel 3 Inch Muffler 2621

Challenge Muffler - Lifetime Warranty 14-16 Silverado / GMC Sierra 1500 Series 4.3L/5.3L 2WD/4WD

Part Number: APH-2621

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

AP Exhaust Challenge Steel 3.5 Inch Muffler 2589

Muffler, Challenge, Steel, Aluminized, Chevy, GMC, Each

Part Number: APH-2589

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

AP Exhaust OE Replacement Steel 3 Inch Muffler 2558

Muffler, OE Replacement, Steel, Aluminized, Dodge, 5.7L, Each

Part Number: APH-2558

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

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Walker Quiet-Flow SS 409 Stainless Steel 3 Inch Muffler 50464

5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Walker Heavy-Duty Steel 4 Inch Muffler 22449

Walker Heavy Duty Muffler

Part Number: WLK-22449

Not Yet Reviewed

Estimated Ship Date: May 1, 2026 if ordered today

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Estimated Ship Date: May 1, 2026 if ordered today

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AP Exhaust TruckEx Steel 4 Inch Muffler 3710

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026

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AP Exhaust MSL Maximum Steel 3 Inch Muffler 700489

Muffler, MSL, Oval, Baffled, Steel, Aluminized, 3.00 in. Inlet/2.75 in. Outlet, 29.00 in. Overall Length, Each

Part Number: APH-700489

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

AP Exhaust OE Replacement Steel 3 Inch Muffler 2525

Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, 6.0, 8.1L, Each

Part Number: APH-2525

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

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AP Exhaust OE Replacement Steel 3 Inch Muffler X503

3.5 out of 5 stars ( 8 )

Estimated Ship Date: Today

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AP Exhaust MSL Maximum Steel 3.5 Inch Muffler 700483

Muffler, MSL, Oval, Baffled, Steel, Aluminized, 3.50 in. Offset Inlet/Outlet, 25.00 in. Overall Length, Each

Part Number: APH-700483

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Walker Quiet-Flow Steel 3.5 Inch Muffler 21753

Muffler, Quiet-Flow, Round, Steel, Aluminized, Chevy, GMC, Each

Part Number: WLK-21753

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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AP Exhaust OE Replacement Steel 3 Inch Muffler 2555

Muffler, OE Replacement, Steel, Aluminized, Dodge, 5.7L, Each

Part Number: APH-2555

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

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Walker Quiet-Flow SS 409 Stainless Steel 3 Inch Muffler 50063

Not Yet Reviewed

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AP Exhaust OE Replacement Steel 3 Inch Muffler 2566

Muffler, OE Replacement, Steel, Aluminized, Dodge, Ram, 3.7, 4.7, 5.7L, Each

Part Number: APH-2566

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

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Walker Quiet-Flow SS 409 Stainless Steel 3 Inch Muffler 21642

4.25 out of 5 stars ( 3 )

Estimated Ship Date: Today

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AP Exhaust OE Replacement Steel 2 Inch Muffler 2527

Muffler, OE Replacement, Steel, Aluminized, Toyota, 4.0, 4.7L, Each

Part Number: APH-2527

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

AP Exhaust OE Replacement Steel 2.25 Inch Muffler 2526

Muffler, OE Replacement, Steel, Aluminized, Toyota, 5.7L, Each

Part Number: APH-2526

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

AP Exhaust OE Replacement Steel 3.5 Inch Muffler 2569

Muffler, OE Replacement, Steel, Aluminized, Dodge, 5.9L, Diesel, Each

Part Number: APH-2569

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today